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Characterization of Ballistic Impact Damage in Wired Glass

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The ballistic impact behavior of wired glass has been studied. Three types of commercially available samples, with thin and thick wire mesh, were impacted with steel, glass, and tungsten carbide spheres of various sizes using a gas gun. Impact energies varied from 0.5 to 40 J. A system of cracks was found to develop that comprised primarily a major cone crack. At higher energies, additional radial and lateral cracking developed along with increased damage to the front face of the sample. The extent of damage was assessed in terms of basal cone crack area, number of cracks, mass loss, and fracture load of impacted samples. It was found that damage, at a given impact energy, increased with increasing projectile diameter. Moreover, 10 mm diameter glass spheres caused more damage than smaller (3–4.74 mm diameter) steel spheres. No significant differences were observed with regard to the ballistic behavior of the thin- and thick-wired glass types.
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Document Type: Research Article

Affiliations: 1: Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K. 2: Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 043 53 Kosice, Slovak Republic 3: Department of Mechanical Engineering, Institute of Technology, BHU, Varanasi 221005, India

Publication date: 2007-08-01

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